Hitch lock



FIG. 1 is a perspective view of a hitch lock showing my new design.

FIG. 2 is a side view thereof.

FIG. 3 is a first end view thereof taken from the left side of FIG. 2; and,

FIG. 4 is a second end view thereof taken from the right side of FIG. 2. 

The ornamental design for a hitch lock, as shown and described. 